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Monolithic Power Systems Inc (MPWR) Insider Trading

Total insider buys:
  • $0.00
Total insider sells:
  • $1,313,546,620.34
Most recent insider trade:
  • Sept. 18, 2025
Most active insider trader:
  • Michael Hsing
Trader NameDateTitleAmountPriceTypeTotal Value
Aug. 10, 2020VP5,287$274.40Sell$1,450,752.80
Aug. 10, 2020Insider4,410$274.40Sell$1,210,104.00
Aug. 10, 2020CFO3,116$274.40Sell$855,030.40
Aug. 10, 2020CEO16,057$274.40Sell$4,406,040.80
Aug. 7, 2020Director200$283.00Sell$56,600.00
Aug. 5, 2020Director1,276$274.00Sell$349,624.00
July 20, 2020CFO2,408$249.34Sell$600,410.72
July 15, 2020VP6,495$246.06Sell$1,598,159.70
July 6, 2020CEO16,540$241.38Sell$3,992,425.20
July 1, 2020CEO10,960$235.16Sell$2,577,353.60
July 1, 2020CFO905$235.16Sell$212,819.80
July 1, 2020VP5,425$235.16Sell$1,275,743.00
July 1, 2020Insider4,305$235.16Sell$1,012,363.80
June 19, 2020CFO1,408$224.13Sell$315,575.04
May 14, 2020Director10,000$195.34Sell$1,953,400.00
May 11, 2020Director2,000$212.00Sell$424,000.00
May 11, 2020CEO17,348$209.96Sell$3,642,386.08
May 8, 2020Director1,026$208.00Sell$213,408.00
May 8, 2020CEO16,619$208.67Sell$3,467,886.73
May 8, 2020VP4,565$208.67Sell$952,578.55
May 8, 2020CFO3,177$208.67Sell$662,944.59
May 5, 2020Director500$198.00Sell$99,000.00
April 29, 2020VP18,171$200.00Sell$3,634,200.00
April 20, 2020CFO2,447$183.05Sell$447,923.35
April 17, 2020Insider49,161$185.01Sell$9,095,276.61
April 13, 2020Director14,000$170.74Sell$2,390,360.00
April 6, 2020CEO17,742$170.00Sell$3,016,140.00
April 1, 2020VP5,520$162.57Sell$897,386.40
April 1, 2020Insider4,380$162.58Sell$712,100.40
April 1, 2020CFO920$162.58Sell$149,573.60
March 31, 2020CEO23,258$170.00Sell$3,953,860.00
March 24, 2020CFO1,408$160.00Sell$225,280.00
March 9, 2020Director19,000$152.66Sell$2,900,540.00
Feb. 20, 2020Director10,000$184.38Sell$1,843,800.00
Feb. 18, 2020CFO49$187.81Sell$9,202.69
Feb. 13, 2020Director500$191.00Sell$95,500.00
Feb. 10, 2020CEO7,957$181.07Sell$1,440,773.99
Feb. 10, 2020VP2,728$181.07Sell$493,958.96
Feb. 10, 2020CFO1,611$181.07Sell$291,703.77
Feb. 10, 2020Insider2,327$181.07Sell$421,349.89
Feb. 10, 2020Director1,500$182.24Sell$273,360.00
Feb. 6, 2020CEO70,886$183.75Sell$13,025,302.50
Feb. 6, 2020VP18,355$183.75Sell$3,372,731.25
Feb. 6, 2020CFO12,096$183.75Sell$2,222,640.00
Feb. 3, 2020CEO9,561$173.89Sell$1,662,562.29
Feb. 3, 2020VP2,904$173.89Sell$504,976.56
Jan. 21, 2020CFO1,784$181.12Sell$323,118.08
Jan. 17, 2020VP10,422$180.39Sell$1,880,024.58
Jan. 13, 2020Director19,000$179.11Sell$3,403,090.00
Jan. 7, 2020VP42,865$176.99Sell$7,586,676.35
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  • Insiders are selling Monolithic Power Systems Inc stock.

  • The insider traders at Monolithic Power Systems Inc are: Michael Hsing, Deming Xiao, Theodore Blegen, Maurice Sciammas, Saria Tseng, James C Moyer, Meera Rao, Jeff Zhou, Kuo Wei Herbert Chang, James Moyer, Victor K Lee, James C. Moyer, Victor K. Lee, Pilkington Karen A Smith-, Pilkington Karen Smith-, Victor Lee, Douglas Mcburnie, and Carintia Martinez

  • The most active insider trader at Monolithic Power Systems Inc is Michael Hsing with 147 trades.

  • Michael Hsing has sold the most Monolithic Power Systems Inc stock with a total value of $543,931,184.02.

  • The most recent insider trade for Monolithic Power Systems Inc was on Sept. 18, 2025.

  • The single biggest insider sell for Monolithic Power Systems Inc was from Michael Hsing with a total value of $34,203,493.56 on Jan. 4, 2024.